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Griffin was hurt at the end of a 13-yard scramble while attempting to lead the game-tying drive with the Redskins trailing 28-20. He left for one play, returned for four, then was no longer able to continue.

Cousins stepped in and hit Pierre Garcon for an 11-yard touchdown pass, then ran in the 2-point conversion with 29 seconds to play.

The Redskins have won four straight to improve to 7-6. The Ravens lost back-to-back games for the first time since 2009 and fell to 9-4.